Apparatus for making spring-heel shoe soles



Mafch 23,1926. 195%,525

.3. F. GSELL APARATUS FOR MAKING SPRING HEEL SHOE SOLES vOriginal Filed July 16, 1923 Figli.-

Fatented Mar. 23, 1925.

UNETED STATES vParam? OFFICE. y

JULIUS F. GSELL, F JERSEYVILLE, ILLINOIS, ASSIGNOR. BY MESNE ASSIGNMENTS,

TO INTERNATIONAL SHOE COMPANY, 0F DELAWARE.

APPARATUS FOR MAKING OF ST. LOUIS, MISSOURI, A CORPORATION SPRING-HEEL SHOE SGLS.

Original application led July 16, 1923, Serial No. 651,733. Divided and'thsappleatien filed May l14,

' 1924. serial No. 713,334. Y

tion Serial No. 651,733, filed July 1.6, 1923.V

An object of the invention is to provide an apparatus wherein the shoe sole blank is molded to give it proper shape and at the same time to center and apply the heel lift throughout its entire area, including the inclined beveled wall at the forward end of the lift.

Additional advantages of the invention will be apparentfrom the following detailed description thereof, taken in connection with the accompanying drawing, in which Fig. 1 is a top plan view of the apparatus.

,F ig. 2 is a side elevation thereof.

Fig. 3 is a bottom plan view of the top section of the mold. l

Fig. f1 is a top `plan view of the bottom section of the mold.

Fig. is a vertical section through the saine. v

Fig. 6 is a cross section taken on the line G--G of Fig. 1. f V

Fig. 7 a cross section taken on the line T-fi' of Fig. 1.

is illustrated in the drawings lthe apparatus comprises a mold including a bottom lsection 1 preferably made of wood. In the. upper face of this bottom section of the mold there are formed two cavities extending inwardly from each end of the mold. The inner portion of each of these cavities is formed with a iat wall 2 for supporting the upper face of the heel lift when the shoe sole is inserted therein in inverted position. The side walls 3 of the inner ends of the kcavities conform generally tothe curvature of the edges of the heel sectionof the soles and the heel lifts applied thereto.- These' side walls have a downwardly extending section 4- in the plane with the plane of the inclined wall forming the line at the forward portion of theheel section of the sole. The Vfront portion of each of the cavities is formed with an arch section 5 to support and form the concave portion of the shoe sole forward of the forward end of the heel lift. At the side edges of the arch section of the cavity are walls 6 that are substantially on a plane with the forward edge of the walls l and also substantially on a plane with the topfof the arched 'portion 5 of the cavity.

Intermediate of the inner edges of the cavities formed in the base section is a transverse channel 7 at the center of which is formed a 'cylindricalbpening 8. On the bottom wall of the base section and surrounding the opening of the cavity 8 is a retaining plate 9 held in place by suitable retaining means, such as wood screws 10.

Seated in the cavity formed by the opening 8 is a post comprising a circular base section 11 to which is connected a stud 12 preferably rectangular in cross'section.` The stud 12 has ratchetteeth formed on one edge and the post `is positionedvin the cavity formed by the opening 8 in such a manner that the base vsection thereof seats on the upper wall of the retaining plate 9, the stud 12 extending vertically above the upper planeof the base of the mold with ratchet teeth facing outwardlyV toward one side edge of themold. A retaining plate 13 hav- Ving an opening. 1dr. therein is secured in posi.' tion in the channel 7, with the stud 12 projecting through said opening 11i. A cotter pin 14Ca may be mounted in an opening in the stud above the plate 13 for retaining the post in position when the plate 9 is removed. An expansion spring 15 is mounted in the cavity 8 and bears against the base section 11 of the post at' one end and against the under face of thev retaining plate 13 at the other end, so as to resilientlysupport the post in position in the cavity. The post constitutes one element of a latohdevice for holding the two mold sections together. .'pDowel pins 16 projeetupwardly from the base section of the mold for centering` the upper section thereof when the same is placed in position.

The upper section ot the mold has its under -face :termed to conform in general contour with the bottom ot the shoe sole with the heel litt applied thereto, there being,` provided a flat wall 17 and a flat wall 18 litting over the heel area ot the shoe sole and inclined sections 19 and 2O arranged to form the downwardly defiected line forward ot the heel section of the sole7 and the concave portions 2i and 22 forming the arched portion of the sole. walls l? and 1S is a centrally disposed openine,` 23 into which thenpper end ofthe post extends. There is also formediirthe upper section o't the mold dowel pin'openings 24; that cooperate with the dowel pins 16 in centering the two sections of the mold;

r-tlatch bolt housing- 25 is secured to the inner 'tace of the upper mold section adjacent to the opening` 28, anda latch bolt 26 is mounted in said housing in such a manner that it projects across the opening 23said latch bolt having` itsprojecting edge formed with ratchet teeth adapted to cooperate with the ratchet teeth ot the post to latch theA two mold sections together. The latch bolt is provided with a ,push rod 2l', said push rod extending outwardly beyond the edge of the mold section. A spring 28 attached at one end to the push rod and fat the opposite end to the wall of the Ymold section normally tends to move the latchl bolt inwardly into engagement with the stud of the post. To release` the latch pressure is exerted on the push rod 27, unlockingr the latch device.

The operation of the apparatus is as tollows. rlhe heel lifts are inserted Vin reverse position in each end of the bottom mold section after a quantity ofgluer or cement has been applied over the area thereot`, it bei-ng` understood, however', that the glue or cement may be applied to the inner iace of the heel litt before the same is inserted in the mold cavity. A 'tlat sole is then placed in` each o'l the cavities otthelbottom mold section in such manner that the heel section is centercd'upon the heel lit. The'top mold section is then centered upon the base section of the ,mold and :pressed,downwardlv,- liieing` retained in position by thelatch device. rl`he molds are so constructed that a plurality or" the same, atterhaving, been tilled with the soles in the manner'described, may be putin apress ot any suitabletype and. pressure appliedy toV thelv molds, thus clamping; each pair ot'mold vsections tightly together. This forms acomplete soleand exerts sulticientpressure to cause'the heel litt to adhere,',uni'tormly throughoutits entire area, in'clt1d-ingg` a tight .connection along the beveled ieclpjenf thelrih'eelflitt 'with' a conf tgu'ous area @fille hl SCtQn 2t the Slice,

Intermediate of the After forming and adhering operation has been completed in the press pressure is released and the molds removed Jfrom the press, the two sections oit the mold released from each other and the completed shoe soles removed 'from the molds.

l am a are that the invention may be modilied in certain particulars without departure from the spirit and scope thereof. I do not limit myselt unessentially, but what l claim and desire to secure by Letters Patent is c l. An apparatus for making` spring` heel soles, which consists in a base mold section having a shapef'torming,l cavity therein, a top section adapted to be applied to said base section and cooperate therewlitlr to shape a sole blank, a latch element in the base section comprising` a ratchet, and a releasable lock jolt supported by the top section and adapted to cooperate with said ratchet to prevent separation ot the two sections ot the mold lwhen latched.

2. An apparatus tor making` spring heel soles, which consists in a base mold section having` `a pair of cavities extending inwardly from each endthereo'l", said cavities having` a jtlat wall and a side wall conforming generally to the contour o1 the heel section of a sole-blank, a downwardly deflected extensiony of the side wall for forming a springl heel line tomvard of the heel section, a top mold section adapted to lit over the base section, a latch device for holding),- the two sections in latched position, and an element for releasing the latch device.

An apparatus for making spring heel soles, which consists in a base mold section having. a pair ot' cavities extending),v inwardly from each end thereof, said cavities having` allat wall and a side wall conforming generally to the contour ot the heel section ot a sole blank, adownvardly dctiected extension ot the side wall for forming` a sprint@r heelline forward ot' the heel section, a top mold section adapted to fit over the base section, a latch device tor holding the two sections in latched position, an element lor releasinO the latch device, and centering means lor centering the two elements ol the mold.

vfbi/tn apparatus tor forming spring,T heel soles, comprisingv a base sect-ion having a pair otshaping` cavities therein, atop section adapted to -bev applied to said base section and to cooperate.therewitli to shape a sole blank, a resilientlyv supportedlatch elcmentin the base section, and a releasable lock boltsupported by the` topsection adaptedwto clamp the two clenjlents together, said latch `4deviceaud lock boltbeing` arranged to` permit" movement'of the mold sections under pressure toward.each-other while retaining the?, 'sectionsl against "separating movement, c

5. A mold for forming a sole blank and portion of a sole blank together,` and adapt-- lor bon'thng the heel hit thereto, comprlsed to move downwardly under pressure to ing a base section having a heel lift receiv shape the sole blank and to exert pressure l0 111g portlon, a sp1-lng' hne fornnng portion upon the heel urea of the sole blank effec- 5 and :1n arch forming portion, and a top tively to bond the heel lift to the heel porseeton adapted to be recelved upon the base tion of the sole blank. section for clamping the heel lift and heel JULIUS F. GSELL. 

